THE REDUCTION OF HIGH SURFACE AREA URANIUM TRIOXIDE1

Autor:	M. G. Mendel, R. E. DeMarco
Rok vydání:	1960
Předmět:	Hydrogen Chemistry Inorganic chemistry General Engineering Oxide Analytical chemistry chemistry.chemical_element Partial pressure Uranium Amorphous solid chemistry.chemical_compound Adsorption Uranium trioxide High surface area Physical and Theoretical Chemistry
Zdroj:	The Journal of Physical Chemistry. 64:132-133
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100830a031
Popis:	The hydrogen reduction of high surface area, x-ray amorphous, UO/sub 3/ was studied at temperatures of 300 to 400 deg C and at hydrogen partial pressures of 0.25 to 1 atmos. The reduction was found to consist of two consecutive steps associated with the reactions: UO/sub 3/ + H/sub 3/ -- UO/sub 2.56/ and UO/sub 2.56/ + H/sub 2/ -- UO/sub 2/. The linear weight loss-reaction time curves indicated that both reactions are primarily controlled by adsorption of hydrogen on the product oxide surface. Activation energies of 27 and 39 kcal/mole were calculated for the reduction of UO/sub 3/ and of UO/sub 2.56/. (auth)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7700c5ec0a9d1909bf4a38f14e4ec73d https://doi.org/10.1021/j100830a031 Zobrazit plný text záznamu